Siddharth Poly Foam Private Limited manufactures Deep Sleep Mattress. Siddharth Poly Foam Private Limited is an ISO 9001: 2000 certified company. The Deep Sleep Mattress is made from natural material and available in attractive colors, designs and patterns. These are ideal for residential usage as well as for hospitality industry and health care sector. These mattresses are comfortable & light in weight and also being appreciated for their durability, water resistance and optimum quality. The wide range of mattresses is filled with natural and non toxic material like straw and feathers. These are comfortable & stylish and provide great sleeping pleasure.